Given below are two statements :
Statement I : The electronegativity of group 14 elements from Si to Pb gradually decreases.
Statement II : Group 14 contains non-metallic, metallic, as well as metalloid elements.
In the light of the above statements, choose the most appropriate from the options given below :
Statement I : The electronegativity of group 14 elements from Si to Pb gradually decreases.
Statement II : Group 14 contains non-metallic, metallic, as well as metalloid elements.
In the light of the above statements, choose the most appropriate from the options given below :
- (A)Statement I is false but Statement II is true✓ Correct
- (B)Statement I is true but Statement II is false
- (C)Both Statement I and Statement II are true
- (D)Both Statement I and Statement II are false
Answer: (A)
Solution
Pauling electronegativities: C 2.5, Si 1.8, Ge 1.8, Sn 1.8, Pb 1.9 -- the values from Si to Pb stay almost the same rather than gradually decreasing, so Statement I is false.
Group 14 does contain a non-metal (C), metalloids (Si, Ge), and metals (Sn, Pb), so Statement II is true.
Key confirmed: A (Statement I false, Statement II true).
Group 14 does contain a non-metal (C), metalloids (Si, Ge), and metals (Sn, Pb), so Statement II is true.
Key confirmed: A (Statement I false, Statement II true).
JEE Main · 2024 · 29 Jan 2024 · Shift 1 · Single correct option